git up a git git down 911 119 191 is a joke in yo town

It made so much sense when I found out in Japan that the number for the popo fire department was 119, because like so many other aspects of Japanese culture, it was the exact opposite of what I was used to. Namely, 911. But it is kind of strange that Thailand has taken the only unique left in that series and dubbed 191 the number for emergency services countrywide.
So the real question is, why don’t they standardize the number for emergency services worldwide?
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Flava Flav says “Ho!”